<template>
    <van-nav-bar
 :title="$route.meta.title"
 v-show="$route.meta.isShowNav"
 @click-left="onClickLeft"
 :left-arrow="$route.meta.isShowBack"
 fixed
 placeholder
 style="height: 46px"
 />
<router-view></router-view>
<tab-bar v-if="isShowTabbar"></tab-bar> 
</template>

<script setup>
import TabBar from './components/TabBar.vue'
import { useRoute } from 'vue-router' 
import { ref, watch, onMounted } from 'vue'
import { useRouter } from 'vue-router'
import { getUser } from './api'
import useUser from './stores/user'

const { user, updateUser } = useUser()
onMounted(() => {
if (user.isLogin) {
loadUser()
}
})
const loadUser = async () => {
const data = await getUser()
updateUser({
isLogin: true,
username: data.username,
avatar: data.avatar
})
}
const route = useRoute()
const isShowTabbar = ref(true)
const router = useRouter()
const onClickLeft = () => {
 if (history.length > 1) {
 router.back()
 } else {
 router.push({ name: 'home' })
 } }

watch(
() => route.meta, 
val => {
isShowTabbar.value = val.isTab
}
 )
</script>

<style> 
#app {
color: #2c3e50;
line-height: 24px; 
--van-nav-bar-background: #ff8000;
 --van-nav-bar-title-text-color: #fff;
 --van-nav-bar-icon-color: #fff;
}
</style>

